OS Simulator to Develop and Test Embedded Applications on Virtualized Hosts In embedded software development, time and effort are the two most critical resources for the software developers. Therefore, they go to great lengths to save time and effort. They spend a lot of time learning about the development system (the hardware, the tools, the operating system, the drivers and the application specifications), setting up the environment, and getting the tools configured so that they can quickly write, compile and debug application code. in Public bookmarkswith operatingsimulatesystemsvxworks